deadhooker
New Member
Hi All,
I've got a 91 Civic that I believe has the stock motor. It has now failed emissions twice, both times with a high nox reading.
Any ideas on what to inspect or replace?
all new cap,rotor, plugs,wires,etc. I did a search and alot of stuff came up with possible o2 sensor. If so, which one would I inspect?
I've got a 91 Civic that I believe has the stock motor. It has now failed emissions twice, both times with a high nox reading.
Any ideas on what to inspect or replace?
all new cap,rotor, plugs,wires,etc. I did a search and alot of stuff came up with possible o2 sensor. If so, which one would I inspect?